Applying binding to insoles



` Feb. 27, 1940. T. J. DQYLE APLYING BINDING To INsoLEs Filed Dec. 22, 1937 2 Sheets-Sheet 1 Peb. 27, 1940. T. J. DoYLE v 2,191,646

APPLYING BINDING TO INSOLES Filed Dec. 22, 1937 2 sheetsQshet 2 26 l portions which are not firmly attached.

Patented Feb'. 21, 1940 y PMENFyx OFFICE A 4nPPLirINc, BINDING To I NsoLEs Thomas J. Doyle, Lynn,- Mass.,assignor to United Shoe Machinery Corporation,

Borough of Flemington, N. J., a corporation of New Jersey Application December 22, 1937, Serial No. 181,1 85v ,Y 16 Claims. This invention relates. to machines for applying edge-binding stripsand is herein illustrated as embodied in a machine for folding an adhesively coated 'binding around the edge of a piece of work, such as the insole of a shoe.

' Edge-bindingstrips Which'have'been employed for trimming the ledgeA of .an insole, which is to be embodied in a strap sandal, have commonly been attached `by'stitching andare made from bias- `.cut material so`v that they will stretch as curved portions ofthe work are bound. f Nevertheless, difficulty has been experienced in getting the Vbinding'to lie smoothly on the marginal faces of the work which varies in thickness and edge con- .tour around its periphery. It has been proposed, therefore, to employ a binding, one surface of which is provided with a pressure-sensitive adhesive such as is found in surgeons tape.

n will be kclear that the application of Such a binding requires accurate positioning of the strip with respect to the` edge vof the work so that the4 marginal portions shall be of the de- .sired'widthyi e., equal or otherwise as desired, and requires that these marginal portions shall lie flat on the work without either wrinkles or An object of the inventionis to provide an improved machine, fo-r applying such binding strips', by which Work of a high quality may be produced with a minimum of skill on the part of the operator and in which a high rate of productionv may be maintained.

lThe illustrated' machine is provided with a continuous feed mechanism and employs a guide ofthe English type by which the strip is automatically reversed or turned inside out as it is drawn continuously through 'the guide by the,

work. r

One feature of the invention resides in an improved guide of the English type in which certain rof the .strip-reversing portions serve as presser members to cause the `binding to bey engaged4 progressively inwardly across the margin of an insole and which are made yieldable or self-adjusting to conform to changes in the thickness of the insole as these changes appear around its periphery. This guide is so arranged also that a rm abutment is provided against which the binding may be pressed by the edge ylof the work thereby to attach the binding to the edge or periphery of the work and in which this abutment is unaffected by the changes in the position of the presser members as the thickness of the work varies.

In accordance with still another feature, the

machine of this type, of an improved cutting-off 10i.`

knife which, as illustrated, is positionedbetween a fixed strip-guideand the self-adjusting stripreversing presser members. f

These and other features of the invention will be described in the following specication, taken 15* in connection with the. accompanying drawings, in which f l, Fig. 1 is an end elevation, with parts broken" away, of the operating portion of the machine;

Fig. 2 is a side elevation of these same machine 20 parts viewed from the ingoing side, while Fig. 3 is a similarelevation viewed from the outgoing or delivery side;

Fig. 4 is a plan View; Fig. 5 is a vertical section on the line V-V 25 in Fig. 2;

Fig. 6 is a horizontal section on the line VI-VI of Fig. 1; l

Fig. 7 is primarily a section on the line VII- VII of Fig. 2 but showing the upper 4presser 30.

members in full lines; v

Fig. 8 is an angular View, shown on a large scale, of the bindingguide and the binding pressing members separated from the rest of the ma-` chine, and 4. 35

Fig. 9 is an angular view of a fragment of the work showing how the binding is reversed as it is .guided from a source of supply and applied to the work.

It will be understood that a binding strip I6 40 bodies guiding and folding mechanism, andfeed- 5() i f ing mechanism including a toothed upper 4`feed roll It) and a rounded feed roll I2 between which the insole is gripped, and by which the work will be fed ina line of feed extending horizontally from right to left, as viewed inFig.- 7. Asillus- 551 arranged `to limit the movement of the knife.

trated, the upper feed Aroll le is mounted on a driven shaft 22 journaled in a. fixed portion 24 of the frame of the machine. The lower feed roll I2 is mounted on a shaft 2B which is journaled in a hinged frame 28 pivotally attached to the frame of the machine at a point to the right -of what vis shown in Fig. 2, this pivoted member 28 being normally held upwardly to the position shown in Fig. 2 by a spring (not shown). This enables the feed rolls l0 and I2 to be separated in accordance with changes in the thickness of the work and to grip the Work firmly regardless of the thickness. When a piece of work is to be inserted, the lower feed roll may be separated from the upper roll by pulling down Aon a treadle rod 3Q. A similar arrangement of driven feed rolls will be found in Letters Patent of the United States No. 2,042,479, granted'June 2, 1936, on the application of C. A. Nev/hall.

The binding I6 Will commonly be supplied in the form of a roll (not shown) and will be, when it leaves the roll, substantially dat, as indicated at the upper part of Fig. 9. It would be inconvenient, however,l to have this straight portion approach the machine along the line of feed. Accordingly, the binding is reversed or turned inside out as it is folded around the edge of the insole I2 into a position in which the edges of the binding are above each other on oppesite sides of the Work. This change of shape of the binding from a fiat condition to one in which it is attached to the insole may best be accomplished without strain onthe binding and without friction in the guide if 'the leading-in portion d of the guide is at an acute angle to the line, of feed and extends inwardly toward the linsole and rearwardly toward the work-entering side of the machine.

In order to support the binding guide, there is mounted on the frame portion 2li a composite block made up of a horizontal plate 32, a vertical rectangular bar 34 (Figs. 3 and 4) and a plate 3S positioned diagonally with respect to the line of feed. To this lower plate 3d there is adjustably attachedl by screws 38 the upright leading-in guide portion 40 having Wire loops @E through which the binding strip i6 may be threaded as it is led up to the machine from a source of supply (not` shown) It will be noted in Fig. '7 that the end of the guide it? is provided with a vertical surface M which forms an acute angle with the surface to which the Wire loops 42 are attached. Furthermore, the end of the guide is rounded, as best shown in Figs. 5 and 8. The curvature of this end of the guide is such that it agrees with the natural bend of the binding as it is' reversed, as illustrated in Fig. 9. By thus rounding the end of the guide, any tendency to stretch the edges of the binding is avoided and there is no tension on the edges of the .binding as there would be if a square-ended guide member were employed.

The plate 32 is. adjustably secured to the frame portion 24 by the screw 46 and attached to it is a grooved block 48 having a iiange 5i? through whichv pass attaching screws 52. A pivot rod 54 passes across the groove of this block and serves as a fulcrum for a ycutting-off knife 55 (Figs. l and 5) attached to a handle 58 by a rivet 6B and having a spear-point blade 56. This knife handle 58. is normally drawn to the position shown in Fig. l by a spring 62, the lower end of which is attached to a hook 64. Stop screws 65 and 68 pass through the bottom of the groove the block 48 and are The spear-point blade is positionedimmediately adjacent to the inclined endi4 of the guide Mi @y `and is adapted to sever the binding ata point where the latter is'bent around the endl of the guide fili and between that guide and the vedge i of the insole.

As the work, such as an insole,` is" guided through the machine, its edge i8 (Figs. '7 and 9) is pressed into engagement with the portion 'lil v of the binding strip which turns forward around v the end il ofl the guide d and in so doing, the

strip will be caused to adhere to the edge of the.

work. It will be noted that the bindingpasses in front of the face of the knife 5t, which latter rests against the abutment provided by the inclined end Ml ofthe guide, thus furnishing al -l firm surface higher than the work isthick and against which the edgeof the work may press the binding to provide proper adhesion of the binding to the edge o f Ithe work.

The binding is then bent around the work by the channel guide-comprising the members 72 and lli-and the abutment $4,516 and `is pressedinto engagement with the upper and lowermar-` gins of the work by these presser members i2 and 'Eli positioned above andbelow .the work. The face of each of these members which rests in contact with the work is tiriangularA and includes a diagonal edge 'it (Fig. 3)v around which the binding is reversed as itis folded aroundV the work (Figs. 1 and 9),.` As the diagonaledges 'lare pressed fiatwise against the binding, they cause it to engage the `margin of the insole, first at points near the'edge of the insole .and

then gradually at points nearer theinside of themargin of the insole,.whereby the formation of wrinkles is avoided.

binding is constructed is stretched considerably, to enable it to be pressed against the insole It will be understood that the bias-cut material of which the j without the formation of'v wrinkles because of n the frictional resistance provided by the .mem`

bers 'I2 and 14. The outer surfaces i8. of these members are curved both horizontally andy ver.

tically to cause lthem to fill the ybulgeill.naturally formed in the vbinding being reversed, as"

shown in Fig. 9, and thus enablethe binding to run smoothly through the guide. It isy also to be noted that the members 'I2 and 1d are positioned close to the feed rolls iii and l2 so thatV the machine is suitable for operation ,on "relatively limp material havingfanj irregular edge contour. i

Any adjustment of the space between the fiat surfaces of these presser members in order to accommodate variations in thickness of the insole, results only in exposing more or less of the abutment surfaceprovided by the knife 56 resting against the end #it and does notopen any cracks by which wrinkles might fbe formed in the binding as wouidbe the case if the guidebl were to be subdivided v' and v the respective parts moved in unison with 'the presser members 12 and it. The upper presser member 'i2 is held in a xed position which maybe adjust? ably determined by means ,of a grocved screw 82 (Fig. 5), while the lower pressermember 'iii is spring-held against the work, as `will be laterv described. To hold the work at lsubstantially a uniform plane and to again press the edges of the binding continuously against the work,

spring-pressed supporting and presser rolls 84- and 86 are provided and the mounting of these ing from .the hinged frame 28;

"35,:1'011 84 in contact with the work, spring-pressed block is also provided'with stop a forkedupper end vpresser roll rollsl and the presser. members will next bev-described.y VThe upper presser member 12. and the -roll 86 vof the machine are mounted in a recessed `block 90 attached to the vertical block 34 by means of screws 92 (Fig. 6). l The blockv 90 is ,grooved at its forward and lower sides `to receive two bell cranks 94 and 96 which aremounted ron a transverse pivot` pin extending substantially at right 4angles to the direction 0f feeding movement of the work. The bell'crank 94 rwhich supports to receivethe grooved adjusting screw 3&2.A At .the same time, the 86` mounted on the lower endgof'the bell crank U6, is held iin engagement with the work by a spring-pressed pin |02.(Fig. l). 'Ihe limitgof the movement of the lbell crank 9S whenl no work is in position is'determined by a stop screw |04. It will beinoted also that the block 90is cut away at Hit` (Figs. 5 and 6) to receive the upright portion ofthe cutting-off knife titi.

In a similar fashion, bell'cranks |||l and (Figs-.I1 and 3) which'is attached by screws iii! (Fig. 3) to the upright portion v|22@ of a bracket |22 clamped to the hinged frame 23 by means ofa vertical screw |24 and another screw 26 which latter extends through a lug |28 'dependlower vpresser member M and the 'supporting furnished in the block Ht. This screws |32 (Figs. 1 vand 2) for limiting the movement of the bell cranks ||0 and ||2. n

In the operation 'of `the machine, a binding strip is rinserted through the wire loops i2 of the guide 40 withv its adhesive Surface faced outwardly. The end of this binding is' bent'around the end 44 of the guide 4B' and an pins |30 are Iinsole is brought manually into engagement with the mid-portion of the binding strip, pressing it againstthe abutment of the guide. To facilitate this," the hinged frame 28A is lowered by means of the'treadle vrod 3D and then released to allow the Work toy begripped between the feed rolls I0 and I2.y Iheserolls being positively driven, carry ther work along and,` with it, the binding strip, which prcgressvely wrapped around the margins cfg-the insole by means of thefpressermembers l2 and 14. The edges ofthe strip are then even more firmly pressed into contact with the work by the presser rolls 84 and 86. After the whole of the periphery of the insolefhas been covered with the binding, the latter may be severedv by manually actuating the knife 55, the point 56 angle of less y of which is passed through the taut binding stripv like a spear.

Having described my invention, what I claim as new and desire to secure lby Letters Patent of' theUnited States is: 1. In a machine for applying an. adhesive binding strip around the edge of an article,

work-feeding' mechanism, a guide for the. binding strip,l said guide extending rearwardly toward the ingoing side of the machinev at an than ninety degrees to the path of feeding. movement, and presser means adjacent said Work-feeding mechanism and closely associated with said guide and positioned above and thepresser member 'i2' has are provided to supportthe lower presser mem- Vber 14 and the lower presser roll 84, and these' aremounted on a pivot pin lid passing transversely of the recess formed in a block |25 Io hold the thenr work, said guide' also being provided with means for folding the binding strip progressivelyacross the adjacent-margins of the insole, and rollers closely adjacent to said folding means engaging the folded 4portions of the binding strip to press them firmly against the margins of the insole.

3.' In av sole-edge binding machine,va bindingy strip-folding i guide for forming `an adhesive binding strip around the edge of a piece of work and having portions engaging the margins of said work, Aand feedrolls closely adjacent to said folding :guide for engaging the margin of the work' tocarry it through said guide, one of the margin-engaging portions of the guide being mounted for yielding movement to accommodate variations in the thickness of the work.

a. In an edge-binding machine, work-feeding mechanism, and a binding-strip-folding guide comprising separable members having diagonal `edges and constructed and arranged to apply heightwise pressure to press. the binding into.

contact with the work progressively across the margin of the work from the outer edge inwardly thereof. g

5. In an edge-binding machine, means for feeding. the work along a path, guide members engaging' the binding vstrip on opposite ysupersci? posed margins of the work, said members having edge portions inclined tothe path of feed and extending from the edge of the work inwardly and forwardly, and means yieldably holding one of said guide members with its edge portion flat against the work thereby to press the extreme margins of the binding strip toward the` work vin `a heightwise direction at a time later than the portions close to the edge of the work.

-6. In an edge-binding machine, work-feeding mechanism,- a binding-strip-reversing comprising separable members having diagonal edgesv and constructed and arranged to press the binding progressively across the margin of the work from the outer edge inwardly thereof,

and means for' supporting one of said members for adjustment heightwise to accommodate variations inthe thickness of the work.

7. In an edge-binding machine, a binding guide comprising an abutment against which vthe mid-portion of the binding' vstrip may be pressed by the edge of the work, Said guide also comprising members separable inthe direction of the thickness of the work and operable to apply pressure in a heightwise. direction to the' binding strip progressively across the margin of the work from the outer edge inwardly thereof, and supplemental means for pressing a margin ofthe strip firmly against the work.

8. In an edge-binding machine, a binding guide comprising an abutment against which the mid-portion of a binding strip may be pressed ing separable `members operable to press the binding vstrip progressively across the margin of the work from the outer edge inwardly thereof, and supplemental members for ypressing the by the edge of the work, said guidev also comprisu margins of the strip iirmly against the Work, one of said margin-engaging members being supported for adjustment heightwise of the Work to accommodate variations in' the thickness of the Work. l l

9. In a machine .for vapplying an ladhesive binding strip around the edge of an article, a channel-Shaped guide for the binding strip having at the inner end of the channel a iiat abutment against which the strip may be pressed by Work presented progressively thereto, said guide .having edges diagonal to the direction of work movement and operating to bend the margins of the strip into full contact with the margins of the work, and continuously acting supplemental means for pressing thevmargins of the strip firmly against the Work.

n l0. In an edge-binding machine ier semirigid work pieces, a strip reversing binding-strip guide providing an abutment to receive the pressure of the edge of the work presented progressively thereto and to press the'mid portion of the `binding into engagement with the edge of the work, members associated with said guide for pressing the marginal portionsl of the binding against the opposite faces of the work and operating progressively from the edges of the Work inwardly to b-ring the edges of the binding against the Work, one of said -members being mounted for adjustment to compensate for` variations in the thickness of the Work, and other means positioned above and below the Work for pressing the binding rmly against said margins. Y

l1. In an edge-binding machine, means for moving a piece of work along a predetermined path, a binding guide positioned at an acute angle to said path, and associated pressure applying members having operative edge por- `tions pressing the binding against the Work, said edge portions being positioned also at an acute angle to said path and diverging from the guide inwardly of the Work. l n

` 12. In an edge-binding machine, a guide plate for adhesively coated binding rigidly supported in upright position with its curved endhaving a portion positioned to receive the thrust of the 2,191,646 y i l. edge of `a piece `of work passing' throughthe machine thereby to cause the binding tol adhere to saidedge, and presser members above y and below the margin oi the Work having surfaces which are .curved heightwise to correspond approximately With the curvature of theend of the guide and curved horizontally from thek edge of the work inwardly thereby to` press thel binding progressively fro toward the inner portion of the work.

`13. In an edge-binding machine,l a, rigidly 'supported binding guide 4approaching the edge m the edge ofthe work? i l of thework at an angle thereto, st'ri1:zrnargin-'I reversing members positioned adjacentfto said guide, and a cutting-oil knife interposed between members;

the end of said guide and said lli. In an edge-binding machine, lmeans for feeding the Work along a path, and axstripreversing guidev for applying said binding to; the.

edge and adjacent margins of -the work,v said guide having a margin-engaging portion which is pivoted about an axis substantially normal 'to the path of feeding movement.

l5. In a machine for applying an adhesively coated binding to the edge and adjacent margins' of a piece of Work, an abutment against which the edge of the work may press the binding strip to attach it to the edge of' thework, and means for pressing the binding tothe marginsl ofl the work automatically adjustable for variations inr the thickness of the workwithout affecting said abutment.

i6.l In a machine for `applying an adhesive binding strip tov the edge and adjacent margins of apiece of work, an abutment against lwhich the edge of lthe work may press the binding strip l' toattach it to the edge of the work, said abutf ment being substantiallykvvider than the thickness of the Work, and means vassociated with the abutment for pressing the binding strip against the margins of the work, saidv means being auto-' .tnatically` adjustable in accordance withvariations in the thickness of the Work and con@k structed andarranged thereby' to expose morev or less of the abutment.

THOMAS J.' DOYLE. y 

